Nope

I'm pretty sure they are the same type of playfield but maybe LE playfields are more scruntaized for flaws versus premium playfields.

nope plus one. And My GOT premium Blue playfield is better than the LE / pro color golden playfields . which is direct opposite of your posting, sorry ,no help

Its you just trying to justify your cost of LE over Prem

The older LE modes used to have the designer signature under the clear coat, which I had thought meant an additional layer of clear. But the signatures are not on the playfields anymore anyway.

When you say the older LE models how old are you talking about? I just got my Aerosmith LE last week which is a 2017 model so not very old at all and it has the John Borg signature on the upper playfield. I can't say that I notice a difference in playfield colors however, I definatley can say that the mirrored backglass is a huge huge plus for the LE pins. That alone makes it worth it for me. Of course on the newest Sterns it seems as if they are not making mirrored backglass anymore even for the LEs at least as far as I know.

I believe AVATAR was the only LE pin with an "additiona"l layer of clear coat as part of the LE package.

My Iron Maiden Premium has cardboard tags on the mechs under the playfield that say LE, so i‘m quite sure there is only a distinction between Pro and LE/Premium playfields.